Churn.



I m l Patented Sept 22,

a cg IAsunucnwI. u. c.

I. 0. VANKIRK.

n m l m Armpumn FILED JULY 11,1901.

I. c. 'VANKIRK.

GHURH.

APPLIOATIOK IILED JULY 11, mm,

m ted Sept. 22, 1908.

3 SHEETS-SHEET 3.

D h n M R m v m To all whom it may concern:

nu. o. VANKIRK, or HUFFMAN, NEBRASKA CHURN.

Be it known that I, IRA C. VANKiRK, a

citizen of the United States, residing at Huffman, in the county of Brown, State of ebraska, have invented certain new and useful Improvements in Churns; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to churns and has for its object to provide a sim 1e and effective churn of that class in which the dasher is given an oscillatory movement.

I have found that when a churn employing a dasher given a rapid osciilatory movement is employed, butter will be produced much quicker than is the case when the dasher is merely rotated. I therefore have in view the provision of a novel dasher and operating mechanism therefor of'such nature that the dasher will be rotated in one direction one cycle of its movement and then quickly rotated to a corresponding degree in the opposite direction.

In the accompanying drawing, Figure 1 is a side elevation of a churn constructed in accordance with myinvention, Fig. 2 is a front. elevation thereof, Fig. 3 is a top plan view, Fig. 4 is a vertical sectional view, taken in the lane with the drive shaft, Fig. 5 is a detail iiorizontal sectional view taken in a plane adjacent the u per end of the dasher shaft, Fig. 6 is a detai view in elevation of the dasher removed from the churn, and, Fi 7 is a dethe means whereby the dasher is held in adjusted position upon the shaft.

As shown in the drawings, the churn comprises a body 10 which is open at its upper end but is provided with a to including a section 11 and a section 12, the section 11 being designed for the support of the. dasher operating mechanism as will be presently described.

The dasher of the churn is indicated by the numeral 13 and its shaft by the numeral 14, the. said shaft bein provided in its lower end with a socket 15 for the reception of a stud 16 which. projects upwardly and axially from the bottom of the bod 10. The dasher proper is in the form of a ate which is provided with a plurality of openings 17, the plate being secured to the shaft 14 by means Specification of Letters Patent.

Application filed July 11, '1907. Serial No. 383,270.

Patented Sept. 22,1908.

of cli s 18 one of which artially embraces the siiaft but is flattene as at 19 to bear against a flattened portien 20 formed on the shaft. It will be understood that by flattening the clip in the manner stated to engage .the flattened ortion if! of the shaft,.the dasher will be ield securely against rotation with respect to its shaft- A set screw 21 is engaged to the flattened portion 19 of the clip and bears against the said flattened portion 20 it being undersraod that by this con- UNITED STATES PATENT OFFICE-J struction, the dasher may be adjusted vertically upon the shaft- Secured upon the section 11 of the to of the churn by means of an attaching p ate portion 22 is a bearing bracket 23. At its inner end, this bracket includes an upstanding semi-cylindrical sleeve. portion. 24 which is presented with its concave face inwardly. The said face of the sleeve portion is designed for the rece tion of a shaft section 25 which is provide in its lower end with squared socket 26 for the rece tion of the gpper squared end 2T- 0! the das ier shaft 14. its lower or socketed end as indicated at 28 and in order that the shaft may be held within the concavity of sleeve )ortion 24, a sleeve 29 is removabfy engage over the sleeve portion 24 and the upper end portion of the shaft section 25- The bearing bracket above mentioned forms a bearing for one end of an operating shaft 29 and the other end of the shaft is journaled with an upstanding bearing 30 formed integral with a. bracket 31 which is secured upon the upper 1:106 of the top section 11 and which has its intermediate portion spaced with respect to the said top and extended above and t cnsversely of the attaching plate portion 23 of the bracket 23. Journalcd upon a stub shaft 33 which is formed upon the intere diate portion 32 of the bracket 31 is a bQmc gear 34 it being understood that the said gear rotates between the attachment piate portion 22 and the intermediate porticn 32 of the bracket 31. Fixed upon the operating shaft 29 for ns shaft section 25 is of gear formation at 4 is provided uith a portion 2g of gear formation and pivotally connected with the gear 34 is a rack bar 38 which is in mesh with'the' said gear portion 28 and which, when the gear 34is rotated is reciprocated thereby serving to rotate the dasher shaft first in one direction and then in the other. This rotation of the dasher shaft will impart to the dasher a corresponding movement and the milk within the dasher will be thoroughly whipped. This treatment of the milk will result in the production of butter much more quickly than if a rotary motion was imparted to the dasher.

Secured upon the sides of the body 10 of the churn are clamps 39 which serve to secure the top section in place.

What isclaimed is- '1. A churn coniprising'a body, a top re movably supported at the top of the body, a

dasher shaf t ournaled vertically in the body, a dasher carried by the shaft and attached vertically thereon, a shaft section removably connected upon the upper end of the shaft including a portion of gear formation, a beveled gear mounted for rotation upon said top, a drive shaft, a beveled gear carried by said shaft and meshing with the first-mentioned'gear, and a rack bar pivotally connected with the first-mentioned beveled gear and meshing m section which is M gear formation;

2. A churn co= orising a body and a top reniovably supp wed upon the body, a dasher shaft ournaled ertically in the body, a shaft section rennin-ably connected to the upper end of the .hershaft and including a portion of gear rrnation, and a rack bar movable in a rem. roc-atory manner and in mesh with said r to rotate said dasher shaft.

3. A churn co-.-.zprising a body, a dasher shaft mounted for rotation in the body, a top trial lat portion of the shaft through which the upper end of the dasher shaft projects, a rack bar mounted for reciprocatory movesentupon said top, a shaft section removabf r fixed to the upper end of the dasher shaft and including a portion of gear formation with which the rack bar is in mesh, and a guide upon the top extending to one side and above said rack bar for preventing sidewisc movement and vertical movement of the same.

In testimony whereof, I affix my signature, in presence [of two witnesses;

IRA c. vaxi;

4 tan. Witnesses O'rrrs P- Manx,

LUELLA M LHLER. 

